B
B is the only complete sentence and explains what your piece will be about.
1) Pronunciation - sounding out a word using basic vowel techniques
2) Context clues- use words around a word you don't know to make sense of the meaning ( always work)
3) prior knowledge- use previous experiences with the word to decipher meaning
Theme:
the subject of a talk, a piece of writing, a person's thoughts, or an exhibition; a topic.
Hope this helps!